ST. GEORGE, Utah - A St. George woman received a rude awakening when a huge boulder tumbled down a ridge into her bedroom, sending her to the hospital with a broken jaw and sternum.

Wanda Denhalter, 63, was sleeping alone when she narrowly missed being crushed under the boulder early Saturday morning, said her husband, Scot Denhalter.

Her husband, who wasn't home at the time, said she apparently heard a rumbling noise before the 12-by-9-foot boulder crashed through the back wall of the house and pinned her in the bedroom.

"She rolled away from the oncoming noise to my side of the bed," Scot Denhalter told The Salt Lake Tribune. "If she had decided to swing her leg over (her) side of the bed to investigate, it would have killed her."

The boulder pushed the bed and other furniture more than 4 feet, he said, and his wife managed to get up and call 911 after being struck.